Results 71 to 80 of about 2,331 (192)

Conceptualization and implementation of a groundwater flow model for the Buda thermal-karst system, Hungary [PDF]

, 2013
The purpose of this work was to characterize the flow system of the area by constructing a 3D steady-state model, which is able to describe the zone budget and potential levels of the flow system, and also be able to manage the different ...
Poyanmehr, Zahra
core   +1 more source

Paleogeomorphy evolution of the Ordovician weathering crust and its implication for reservoir development, eastern Ordos Basin

Petroleum Research, 2018
Gas reservoir development of the Ordovician weathering crust in the Ordos Basin is closely controlled by the pre-Carboniferous paleogeomorphy. Previous studies show that the paleogeomorphy is high in the west and low in the east, and the karst highland ...
Xinshan Wei, Junfeng Ren, Junxing Zhao, Daofeng Zhang, Shunshe Luo, Liubin Wei, Juanping Chen   +6 more
doaj   +1 more source

Quaternary and Silurian Geology at the Martin Marietta Cedar Rapids Quarry, Linn County, Iowa: Field Guidebook, April 30, 2005 [PDF]

, 2005
This is a guidebook for field conference of a culmination of a long series of cooperative investigations in Iowa. With the staff of the Iowa Geological Survey and many other departments and survey services in accompanying states to produce this guidebook.

core  

Karst: a very diverse concept [PDF]

, 2016
La gran diversidad intrínseca del karst y la variedad de campos científicos desde los que ha sido estudiado este medio ha generado un espectacular aumento de su conocimiento.
Andreu Rodes, José Miguel, Calaforra, Jose Maria, Cañaveras, Juan C., Cuezva Robleño, Soledad, Durán, Juan José, Fernández Cortés, Ángel, Garay, Policarpo, García del Cura, María Ángeles, Gázquez, Fernando, Ordóñez Delgado, Salvador, Sánchez Moral, Sergio   +10 more
core   +2 more sources

Differences of carbon and oxygen isotopes in coarse-grained calcite from the Permian Maokou Formation in different regions of Sichuan Basin and their significance in paleokarst environment

Carsologica Sinica
Oil and gas fields in karst carbonate reservoirs are widely distributed in China. A number of karst fracture-vuggy reservoirs have been found in the Tarim Basin, the Ordos Basin and the Sichuan Basin.
Zhaolong GAO, Yong DAN, Xihua ZHANG, Hua CAO, Min DENG, Cong CHEN, Luojia HU   +6 more
doaj   +1 more source

Sequence lithofacies paleogeography and reservoir potential of the Maokou Formation in Sichuan Basin

Petroleum Exploration and Development, 2012
Based on multidisciplinary analyses of outcrops, core description and log data, two types of sequence boundary are identified, including a partially exposed unconformity surface and a drowned unconformity surface.
Mingyi HU, Zhonggui HU, Guoqi WEI, Wei YANG, Mancang LIU   +4 more
doaj   +1 more source

Plio-Pleistocene Dust Traps on Paleokarst Surfaces: A Case Study From the Carpathian Basin

Frontiers in Earth Science, 2020
Plio-Pleistocene silt/clay-rich deposits and paleo-karst fissure sediments from sites of the northern and southern parts of the Carpathian Basin were investigated.
János Kovács, János Kovács, Gábor Újvári, Gábor Újvári, György Varga, Klemens Seelos, Péter Szabó, Péter Szabó, József Dezső, Nadia Gammoudi   +9 more
doaj   +1 more source

Sedimentología de sucesiones sinrift tempranas en un semigraben marginal de un rift extensional: la Cuenca de Bijuesca, Jurásico superior de la Cordillera Ibérica (Zaragoza, España) [PDF]

, 2011
Un estudio sedimentológico detallado de los primeros depósitos continentales sinrift que aparecen en el Semigraben de Bijuesca (Formaciones Ciria y Bijuesca), ha permitido entender la arquitectura estratigráfica de los sedimentos que representan el ...
Arribas Mocoroa, María Eugenia, Mas Mayoral, José Ramón, Sacristán Horcajada, Sara   +2 more
core   +1 more source

Karst monadnock fine characterization and reservoir control analysis: A case from Ordovician weathering paleokarst reservoirs in Lungu area, Tarim Basin, NW China

Petroleum Exploration and Development, 2017
: Based on the fine characterization of weathering crust paleokarst landform of the Ordovician Yingshan Formation in Lungu area, Tarim Basin, the size, number and reservoir controlling characteristics of karst monadnocks have been investigated ...
Yunfeng ZHANG, Fei TAN, Haizhou QU, Zhiqi ZHONG, Yong LIU, Xinsheng LUO, Zhenyu WANG, Fang QU   +7 more
doaj   +1 more source

Estromatolitos pelágicos fosfatados relacionados con discontinuidades estratigráficas en el Cretácico del Penibético (provincia de Málaga) [PDF]

, 1987
En relación con discontinuidades estratigráficas en el Cretácico del Penibético se encuentran estromatolitos pelágicos fosfatados, constituidos por apatito criptocristalino (3 al 45 %).
García-Cervigón Bellón, Alfonso, Martín Algarra, Agustín, Montealegre, L., Vera, J. A.   +3 more
core   +1 more source